Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第VI部門

山岳トンネル (15)

Thu. Sep 5, 2019 10:25 AM - 11:55 AM VI-12 (幸町総合教育棟 第31大講義室)

座長:田川 謙一(東海旅客鉄道)

[VI-740] Establishment of tunnel construction method not dependent on worker's skill

*渡辺 匠1、加藤 隆雄2、黒川 尚義1 (1. (株)大林組、2. 国土交通省)

Keywords:tunnel, high-flow concrete, computer-jumbo, productivity enhancement

In tunnel construction, in order to ensure safety, quality, processes, and benefits, there is a current situation relying on the ability and skill of workers.In the future, construction workers will continue to decrease and it will be very difficult to secure skilled workers.
We worked on the following three items in order to establish a tunnel construction method that does not depend on the skill level of workers.
(1) Adoption of high fluidity concrete for lining

(2) Adoption of five-person simultaneous call radio in face operation

(3) Adoption of computer jumbo (automatic boring guidance system) with tunnel supporting

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